The amount of a E3 ubiquitin-protein ligase pellino homolog 1 when measured in blood serum. The trait is Ontology of Biological Attributes entry OBA_2040417 (level of E3 ubiquitin-protein ligase pellino homolog 1 in blood serum). Also known as: blood serum E3 ubiquitin-protein ligase pellino homolog 1 amount.